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Indirect Prompt Injection Defense: Securing Tool-Using Autonomous Agents

Defending enterprise autonomous agents against indirect prompt injection using dual-LLM air gaps and strict execution boundaries.
August 28, 2026
Blog
Indirect Prompt Injection Defense: Securing Tool-Using Autonomous Agents

Indirect prompt injection is the number one security vulnerability in autonomous AI systems: an untrusted web page, email, or customer ticket contains hidden instructions that hijack the agent tool execution. We explain the dual-LLM air-gap defense pattern.

Defense in Depth

Separating untrusted data processing from privileged action orchestration via deterministic boundary validators.